vice president joe biden was sworn in a short time ago, justice sonia sotomayor administering the oath. the president and vice president have just arrived at arlington national cemetery where they will place a wreath at the tomb of the unknown of. we will bring that ceremony to you live when it begins. president obama's public swearing-in takes place tomorrow on the west front of the u.s. capitol. we are told in his inaugural speech he will not include any new proposals or call out, if you will, any of his political opponents. arlington that's your, you see the president and vice president, what has become a tradition, which is to go to the to tomb of the unknown of and, of course, pay homage to those who make plays like this possible. [ drumbeats ] [ "taps" ] >> so there you have it, what has become a traditional inaugural day activity, a salute from the commander in chief and his vice president at the tomb of the unknowns. joining me now, don bare, a former chief speechwriter for president clinton and dave gerson, with the "washington post." going took the words what is going to happ